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Annotation of Net2/arch/i386/floppy/mknod/mknod.c, revision 1.1.1.1

1.1       root        1: /*-
                      2:  * Copyright (c) 1991 The Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms, with or without
                      6:  * modification, are permitted provided that the following conditions
                      7:  * are met:
                      8:  * 1. Redistributions of source code must retain the above copyright
                      9:  *    notice, this list of conditions and the following disclaimer.
                     10:  * 2. Redistributions in binary form must reproduce the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer in the
                     12:  *    documentation and/or other materials provided with the distribution.
                     13:  * 3. All advertising materials mentioning features or use of this software
                     14:  *    must display the following acknowledgement:
                     15:  *     This product includes software developed by the University of
                     16:  *     California, Berkeley and its contributors.
                     17:  * 4. Neither the name of the University nor the names of its contributors
                     18:  *    may be used to endorse or promote products derived from this software
                     19:  *    without specific prior written permission.
                     20:  *
                     21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     31:  * SUCH DAMAGE.
                     32:  *
                     33:  *     @(#)mknod.c     5.1 (Berkeley) 5/9/91
                     34:  */
                     35: 
                     36: #include <sys/param.h>
                     37: #include <sys/stat.h>
                     38: 
                     39: int eval;
                     40: 
                     41: main(argc, argv)
                     42:        int argc;
                     43:        char **argv;
                     44: {
                     45:        register char *p;
                     46:        register int major, minor;
                     47:        unsigned short mode;
                     48: 
                     49:        if (*++argv && **argv == '-') {
                     50:                err("no options available", 0);
                     51:                _exit(1);
                     52:        }
                     53:        if (argc != 5) {
                     54: usage:         err("usage: mknod name [b|c] major minor", 0);
                     55:                _exit(1);
                     56:        }
                     57:                
                     58:        mode = 0666;
                     59:        if (argv[1][0] == 'c')
                     60:                mode |= S_IFCHR;
                     61:        else if (argv[1][0] == 'b')
                     62:                mode |= S_IFBLK;
                     63:        else
                     64:                goto usage;
                     65: 
                     66:        for (major = 0, p = argv[2]; *p; ++p)
                     67:                 major = major * 10 + *p - '0';
                     68:        for (minor = 0, p = argv[3]; *p; ++p)
                     69:                 minor = minor * 10 + *p - '0';
                     70: 
                     71:        if (mknod(argv[0], mode, makedev(major, minor)) < 0) {
                     72:                err(argv[0], 1);
                     73:                _exit(1);
                     74:        }
                     75:        _exit(0);
                     76: }
                     77: 
                     78: #define        PROGNAME        "mknod: "
                     79: #include "errfunction"

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